hello, please solve the question below accordingly GIVE ANSWERS IN FOUR DECIMAL PLACES thank you in advance passive R-L

[answerhappygod]

hello,
please solve the question below accordingly
GIVE ANSWERS IN FOUR DECIMAL PLACES
thank you in advance
passive R-L load is supplied from a step-down DC-DC converter
(chopper) from a LiPo battery of 15 V. The chopper operates with
switching frequency of 4 kHz. The load resistance and inductance
are 9 Ω and 60 mH, respectively, so that the converter operates in
the continuous conduction mode. The switching components can be
considered as ideal.
a) Determine the required duty cycle and chopper on-time if the
chopper output average voltage is 11 V.
ton1 = ( μμs)
b) Calculate the average load current and the power delivered to
the load for the case considered in part a).
P = ( W)
c) After certain time the battery has discharged, and the
battery voltage dropped to 13.8 V. Calculate the new values of duty
cycle and chopper on-time needed to maintain the same voltage on
the output.
d2 =
ton2 = μμs
d) How much power is now taken from the battery? [5 marks]
P = W